SPI 10-719-3 Setting Ring: 1/2" ID x 1-1/2" OD x 0.393" Thick, Accurate to 0.0001"

SPI 10-719-3 Setting Ring: 1/2" ID x 1-1/2" OD x 0.393" Thick, Accurate to 0.0001"

• 0.00 micron surface smoothness
• Use to calibrate inside micrometers at either the high or low end of the range
• Also ideal for dial bore gages, vernier/dial/electronic calipers, and other gages
• Actual size is engraved on each setting ring